C2997439 Ethernet transceiver chip solution verification board based on SR8201F

The solution verification board supports MII and RMII modes; full/half duplex operation; the chip has its own 25MHz clock. If you have other needs, you can solder the required external crystal oscillator by yourself; the RXDV pin has a built-in pull-down resistor to set the chip to work in MII mode. If R14 is soldered, it can enable RMII mode. After the power is powered on and loaded successfully, this pin works as a valid pin for receiving data. The RXD1 pin has a built-in pull-down to enable the chip to work in LED mode. If R16 is soldered, it can be pulled up to enable WOL mode. When in RMII mode, the RXD2 pin is used for interrupts. The RXD3 pin is the clock setting pin in RMII mode. The built-in pull-down is in the REF_CLK output mode. If R18 is soldered, the pull-up can enable the REF_CLK input mode. In this solution verification board, the LED is fixed to active low and the PHY address is fixed to 11.